1312311110 has 32 divisors (see below), whose sum is σ = 2579664672. Its totient is φ = 476692480.

The previous prime is 1312311101. The next prime is 1312311137. The reversal of 1312311110 is 111132131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105542 + ... + 117318.

It is an arithmetic number, because the mean of its divisors is an integer number (80614521).

Almost surely, 2^1312311110 is an apocalyptic number.

1312311110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312311110 is a deficient number, since it is larger than the sum of its proper divisors (1267353562).

1312311110 is a wasteful number, since it uses less digits than its factorization.

1312311110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12808.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1312311110 is about 36225.8348420019. The cubic root of 1312311110 is about 1094.8272588095.

Adding to 1312311110 its reverse (111132131), we get a palindrome (1423443241).

The spelling of 1312311110 in words is "one billion, three hundred twelve million, three hundred eleven thousand, one hundred ten".